Oil pump



Nov. s, 1932.

B. SHREIBER oIL PUMP Filed Feb. ll. 1,931

3 Sheets-Sheet 1 Nov. 8, 1932. a. sHRElBER 1,886,751

oIL Pima? y Filed Fem:l 11, 1931 v s sheets-sheet '2 .i f l l l 'l w l Il l i. l` l "J I 'j i Il 1- Y Hl w Y Q Q w INVENTOR.

. ernard Shred-:er

L BY A I ATTORNEY? Nw. s, 1932.4-

OIL PUMP Filed Feb. 11, 1931` 5 Sheets-Sheet NN w ma n; E WWLQ 00A m` n @Ma m. n w

ylxa'tente-:cl Nov. 8, 1932 W UNITED STATES PATENT OFFICE BERNARD SHREIBER, .or NEW roma, N. Y., AssIGNoR To MEYER anNn1=..1'.o1-

vNEW Yomz, N. Y.

'appueaaon med February 11, 1931. aerial ne. 515,116.

This'invention relates to fuel oil burner apparatus such as is usedv in .connection with a burner nozzle for supplying oil and air thereto. Y One important object of the invention is to provide a novel arrangement of pumps, piping and the like in such an apparatus Whereby to produce a highly eicient operation.

-A second important obj ect of the invention 1o is to provide, in such an apparatus a means for atomizing or emulsifying oil prior to its being fed to the burner.

A third important object of the invention is 'to provide a novel emulsifying pump for such apparatus.

A fourth important object of the invention is to provide a novel arrangement of arts wherein the emulsifying pump will be Jacketed with oil in the passage of the oil to the pump for emulsication so that the oil will bewarmed and thus rendered easy to emuls1 With the above and other objects in view, the invention consists in general ofcertain novel details of construction and combinations ofparts hereinafter fully described, i1- lustrated in the accompanying drawings and specically claimed.

In the accompanying drawings like characters of reference indicate like parts in the several views, and

` Figure 1 is a right side elevation of the apparatus.

Figure 2 is a left side elevation thereof. Figure 3 is a front elevation of the emulsi- Figure 4 is a vertical axial section through Figure 3. w o Figure 5 is a longitudinal axial section through the nozzle.

Figure 6 is a similarsection through the by-pass pressure valve.-

Figure 7 .is an end elevation of the oil 5 needle-valve.

Figure 8 is a. vertical axial section through Figure 7.

In the embodiment here illustrated, which shows one preferred vform of the invention,

there is provided a stand or base 10 and oentrally of this stand is mounted an ordinary electric motor 11. On the stand is a junction box l2 for connection of the electric wiring leads (not shown) and from this junction boxa cable 13 extends to the motor 11.

On the forward end of the stand is an emulsifier havinga cylindrical casing 14 through which extends an annular channel 15 opening rearwardly of the emulsiier. W'ithinl this casing 14 is a cylindrical chamber 16 yvl'erein is eccentrically positioned a cylindricalimpeller 17 having vanes or blades 18 sliding in channels 19 in the impeller body and, in operation, having their outer edgesengaging against the cylindrical wall of the ychamber 16. The forward end of the chamber 16 is closed by a head 20 having at its lower part an intakeport 21 and an exhaust port 22, these ports being laterally spaced to lie on opposite sides of the lowerppart of the impeller 17. The rear ends of the chamber 16 and channel 15 are closed by a head 23 which has, at its lower part, an inta-ke port 24 and at its upper part, an outlet port 25. Y The head 20 carries an end bearing 26,'and the head 23 carries a through bearing 27 provided with a packing' gland 28, these bearings and the impeller being axially alined with the motor 11 so that the motor shaft 29 may extend through bearing 27 and impeller 17 andinto bearing 26. The impeller is suitably secured to the motor shafttobe driven thereby.

A supply line 30 provided with a valve 31 leads from asuitable-source of oil supply such as la tank or reservoir (not shown) to the port 24 and a pipe 32 leads from the port 25 to the intake connection at the upper part oi.

' an ordinary strainer 33 which has its outlet connected tothe intake of a standard pump 34. This pump is driven ,from the shaft 29 and thel construction of the pump and strainer being standard their details are not. here shown. A delivery pipe 35 leads' from the pump outlet to a T-itting 36 and, from theforward end of this T-itting a pipe 37 leads through a strainer 38 to a magnetic oil valve 39 of standard construction, this valve being of the type which automatically closes upon interruption of current to the motor and beingconnected to the junction box by a cable closed by a plug 41. A pressure gage 42 is connected to the pipe 37. The rear end of the T-itting 36 is connected to the by-pass pressure valve illustrated in vdetailin Figure 6.

This valve has a i'body 43 the forward end of `which is connected by a suitable nipple with the T-fitting 36. The stem or outlet of Y this body is threaded for connection to a pipe leading back to the oil supply and provided with a valve 45. Immediately above the outlet is a valve chamber 46. And to the rear of this chamber is an internally threaded portion 47 terminating rearwardly in a stuifing box 48. In this threaded portion is screwed a spring seat .49 having a stem 50 which passes through the stuiing box and is provided with a screw kerf or analogous part so that the spring seat may be screwed in and out and thus adjusted. The seat and stem are chambered forwardly to receive the stem 51 of a valve 4head 52 which seats on the rear end of the intake of this valve. A cap normally conceals the kert provided end of the valve stem and a spring 54 surrounds the stem between the valve head and spring seat. .By this means excess Aoil delivered by the pump will'by-pass back to the reservoir and the desired oil pressure inthe pipe 37 will not be exceeded, proper adjustment to this end being made of the spring seat 49. v

From-the valve 39 leads a pipe 55 which communicates with the needle valve 56 by which the admixture of oil and air is regulated. This needle valve shown in Figures 7 and 8 consists of an inverted T-shaped body 56 having a nipple 57 projecting from the stem of the T for connection of the pipe 55.

At the lower end of the stem is a valve seat 58- with which cooperates an adjustable needle valve 59 having a stem 60 projecting upwardly through a capped stuffing box 6l and provided with a suitable head to permitturning of the valve and adjustment thereby with relation to the seat 58. One end'of the body 56 is screwed into the inlet opening 21 and an air intake pipe 62 is attached to the other end of the body and is provided with an air muier 63 of standard construction. Leading forwardly from the outlet 22 is a pipe 64 which carries on its forward end a nozzle 65 provided, as in Figure 5 with a replaceable j et tip 66. A pressure gage '67 is connected to the pipe 64.

The course of the oil land air is indicated by the arrows on Figures 1 and 2 and it will be seen that, as the oil enters the apparatus, it

flows first around the emulsiier. It is a well known physical law, exemplified by vJoules experiment showing the relationship between heat and energy, that the movement of an impeller through Huid will raise the temperature of the fluid. Consequently, the oil in the channel 15 will be warmed by the action of the emulsifier and will How readily through the pump and itsconnectionsto the emulsiier where an emulsion 'of air and oil will be formed and delivered through the nozzle in the form of a iine mist. rIhe emulsifyin chamber will be kept cool by the flow of oi through channel, 15.

There has thus been. rovidedl a simple and ecientdevice of the nd described and for the purpose specified.

It is obvious that1 changes may the form and construction of the apparatus without departing from the principles involved. It is not, therefore, wished to contine'the invention to the exact form and arrangement here shown but it is wished to include all such as come within the scope claimed.

Having thus described the invention, what is claimed as new, is

1. In an oil burning apparatus, a pump having a central chamber therein surrounded by an unbroken annular Wall and 'having an oil-'jacket entirely surrounding the periphery of the central chamber concentric thereto to form an annular oil-heating chamber, a beater mounted excentrically in said chamber to provide a lunate oil space between the beater and the adjacent annular chamber wall, said beater having movable vane's constantly contacting with said annular chamber wall,l said central chamber having inlet and outlet port-s at one end extending axially of the beater and opening into respective ends of the lunate passage, said oil jacket also having inlet and outlet ports, and conduit means connecting the outlet port of the oil jacket and the inlet' port of the central chamber.

be made in' 2. In an oil burning apparatus, a pump having a central chamber therein and having an annular oil jacketentirely surrounding the periphery of the central chamber concentric thereto to form an annular pre-heating chamber, a beater mounted excentrically in said chamber to provide a lunate oil space between the beater and the peripheral chamber walls, said beater having movable vanes constantly contacting with said peripheral chamber wall, said central chamber having inlet and outlet ports at one end and opening into respective ends of the lunate passage, said oil jacket also having inlet and outlet ports, and conduit means connecting the outlet port of the oil jacket and the inlet port of the central member, the ports for the oil jacket being located at the end opposite the ports for the chamber, the inlet port for the jacket being located at the bottom of the jacket and the outlet prt of the jacket being located at BERNARD SHREIBER. 

